Airlock foam through

BlindHoundBrew · May 6, 2013

I brewed a pale ale Saturday and checked it today and saw where the kreusen foamed through the airlock and down the sides of the Carboy. Obviously should have used a blow off tube but does anyone know why this happened?
Should I clean and replace airlock or let it be? I have attached a picture. Thanks

craigkelker · May 6, 2013

If there is pressure inside the carboy, it could crack. A functioning airlock should be on it. It happened because it was a roaring fermentation which is good. Let it rest for another week or two and then you can rack to secondary.

SpeedYellow · May 6, 2013

Spend the $3 for the orange caps, always hook up a blow off tube for ales, and you'll be all set.

BTW, did you by chance ferment this in the 70s? I'm surprised the krausen filled up all that head space.

sniperd · May 6, 2013

Sometimes my fermentation goes wacky like that too, usually it's a good thing. I would certainly take that airlock off, clean it in pbw/starsan, and put it back. If you are nervous about taking it off starsan some tinfoil and quickly swap it on while you clean the airlock.

BlindHoundBrew · May 7, 2013

It has been in a closet inside the house thermostat says 68 in house.... Kruesen has already subsided back down. Thanks all for the input, I will def clean airlock ASAP

Airlock foam through

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Airlock foam through

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